Patents by Inventor John Francis Grimes

John Francis Grimes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Liquid level measuring system and method
    Patent number: 9046407
    Abstract: A system and method for measuring the liquid level in a tank or container is provided. The system can have a sensor string comprising a plurality of analog output hall-effect sensors and a computer readable memory containing sensor string information, a float having a magnetic field and positionable relative to the sensor string, and a controller containing at least one processing unit, at least one memory and a sensor string interface for connecting the controller to the sensor string. The system can be operative to obtain the sensor string information from the at least one memory of the sensor string, obtain a preloaded waveform indicating the output of a sensor relative to the position of the float and approximate the position of the float relative to the sensor string using the normalized output of at least one of the sensors and the preloaded waveform.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: June 2, 2015
    Assignees: QUEST MEASUREMENT INC., SASKATCHEWAN RESEARCH COUNCIL
    Inventors: Kimberley Allan Young, John Francis Grimes, Nathan Oliver Peter
  • LIQUID LEVEL MEASURING SYSTEM AND METHOD
    Publication number: 20120116695
    Abstract: A system and method for measuring the liquid level in a tank or container is provided. The system can have a sensor string comprising a plurality of analog output hall-effect sensors and a computer readable memory containing sensor string information, a float having a magnetic field and positionable relative to the sensor string, and a controller containing at least one processing unit, at least one memory and a sensor string interface for connecting the controller to the sensor string. The system can be operative to obtain the sensor string information from the at least one memory of the sensor string, obtain a preloaded waveform indicating the output of a sensor relative to the position of the float and approximate the position of the float relative to the sensor string using the normalized output of at least one of the sensors and the preloaded waveform.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 10, 2012
    Inventors: Kimberley Allan Young, John Francis Grimes, Nathan Oliver Peter